CarPlay shows compatible apps from the user’s connected iPhone on the car’s built-in display, applying simplified interfaces that are optimized for use while driving.
Eliminate app interactions on iPhone when CarPlay is active. CarPlay is the best and safest way to interact with apps while driving, and interactions should occur using the car’s built-in controls and display. Any required setup on iPhone should occur before the vehicle is in motion.
Never lock the user out of CarPlay because the connected iPhone requires input. Assume that the iPhone is inaccessible when CarPlay is active. If a problem must be resolved on the connected iPhone, let the user do so once the vehicle is stopped.
Make sure your app works when the iPhone is locked or in the trunk. When CarPlay is active, the user’s phone may be locked or otherwise inaccessible. Your app should function regardless.